Question 1 (0.5 points){Graphs at the bottom}
The table above shows 3 different groups of crocodiles. In each of the groups, A, B and C, the crocodiles are grouped based on their total lengths in meters. Study the chart and choose the statement below that is a true based on the data in the table.
Question 1 options:
a. Group C does not have a preference between reptiles and bird.
b. The smaller the crocodile is, the larger the prey.
c. Removal of fish will have a negative impact on Group B.
d. Group A likes larger animals.

Question 2:
An experiment was carried out to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of 30 year old men and women were measured before drinking caffeine. On day one, each person was given a caffeinated soda. On day two, each person was given caffeine-free soda. One hour after drinking the soda, their pulse rates were measured. The participants in the experiment were all the same age and they were all given the same amount of soda. The dependent variable in this experiment is the (HINT: _ depends on _).
Question 2 options:
a. Type of soda given to each person.
b. Amount of soda given to each person.
c. Pulse rate of each person.
d. The age of the person.

Question 3:
A(n) _ is a tentative, testable statement about the natural world that is capable of being supported or refuted by scientific evidence, whereas a(n) _ is a well-established and highly-reliable explanation of a natural phenomenon.
Question 3 options:
a. Hypothesis; theory
b. Opinion; theory
c. Theory; hypothesis
d. Thought; law
Question 4:
When a person does strenuous exercise, small blood vessels near the surface of the skin increase in diameter. This allows the body to be cooled and maintain temperature. Which characteristic of life does this best illustrate?
Question 4 options:
a. Excretion
b. Homeostasis
c. Adaptation
d. Growth and Development
Question 5:
Which of the following shows the levels of organization in a multicellular organism from the smallest level to the largest?
Question 5 options:
a. cell, tissue, organ, organ system, organism
b. organism, organ system, organ, tissue, cell
c. tissue, cell, organ, organ system, organism
d. organ, organ system, organism, tissue, cell
Question 6:
The original source of ALL energy for living organisms is _, while the most direct source of usable energy for organisms is _.
Question 6 options:
a. Glucose, the sun
b. The sun, ATP
c. Glucose, ATP
d. ATP, the sun
Question 7:
Which statement is true of all organic compounds?
Question 7 options:
a. All are classified as carbohydrates.
b. All contain carbon.
c. All contain only oxygen.
d. All contain only nitrogen.
Question 8:
The sun's energy is absorbed by plants and converted into glucose during _. Animals and plants then convert the glucose into usable energy in a process called _.
Question 8 options:
a. Chemosynthesis; photosynthesis
b. Photosynthesis; cellular respiration
c. Cellular respiration; photosynthesis
b. Chemosynthesis; cellular respiration